I watched this series multiple times. There were things in the story that really bothered me, but overall the positives outweighed the negatives.
What I like:
- sincerity and the good-nature personality of the FL. I could sense how ML was falling for her
- FL's responses to the love rival was gold and not the typical K-drama reactions
- SML was not evil and ended up with the best friend
- ML being honest in the end of what married life would be like for her
- Sweet kisses

Cons:
- the skinship in the beginning was bothering me because at that time it wasn't clear yet that they liked each other. So it felt like ML was taking advantage of the FL . I don't understand how they could said they would date "seriously" while also putting a time limit. Time limit negates any type of "seriousness" in the relationship.
- I really appreciated ML's honesty in outlining the challenges in being his wife, and yet I felt after the wedding the opposite situations of those challenges were shown (for example we didn't get to see her spending a lot of time alone, surrounded by bodyguards, etc.)

Overall, still love it, and would re-watch many more times I'm sure in the future.